title: Development of a parent-report cognitive function item bank using item response theory and exploration of its clinical utility in computerized adaptive testing.
abstract: OBJECTIVE
  The purpose of this study is to report the reliability, validity, and clinical utility of a parent-report perceived cognitive function (pedsPCF) item bank.
  
  
  METHODS
  From the U.S. general population, 1,409 parents of children aged 7-17 years completed 45 pedsPCF items. Their psychometric properties were evaluated using Item Response Theory (IRT) approaches. Receiver operating characteristic (ROC) curves and discriminant function analysis were used to predict clinical problems on child behavior checklist (CBCL) scales. A computerized adaptive testing (CAT) simulation was used to evaluate clinical utility.
  
  
  RESULTS
  The final 43-item pedsPCF item bank demonstrates no item bias, has acceptable IRT parameters, and provides good prediction of related clinical problems. CAT simulation resulted in correlations of 0.98 between CAT and the full-length pedsPCF.
  
  
  CONCLUSIONS
  The pedsPCF has sound psychometric properties, U.S. general population norms, and a brief-yet-precise CAT version is available. Future work will evaluate pedsPCF in other clinical populations in which cognitive function is important.
authors.affiliation: Medical Social Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA. js-lai@northwestern.edu
authors.forename: Jin-Shei
authors.initials: JS
authors.lastname: Lai
authors.forename: Zeeshan
authors.initials: Z
authors.lastname: Butt
authors.forename: Frank
authors.initials: F
authors.lastname: Zelko
authors.forename: David
authors.initials: D
authors.lastname: Cella
authors.forename: Kevin R
authors.initials: KR
authors.lastname: Krull
authors.forename: Mark W
authors.initials: MW
authors.lastname: Kieran
authors.forename: Stewart
authors.initials: S
authors.lastname: Goldman
mesh_terms: D000203:Activities of Daily Living; D000293:Adolescent; D002648:Child; D003071:Cognition / Q000502:physiology*; D003072:Cognition Disorders / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008297:Male; D009483:Neuropsychological Tests; D011594:Psychometrics; D015203:Reproducibility of Results